Top Definition
A person who is not trying to enlighten anyone, they're trying to prove how intelligent they are without understanding the intelligence of their audience. They never get to understand their audience because they're to busy concentrating on their next brilliant statement.
I looked around the class and seen the look of confusion. Professor Smith is a mental masturbator. He is mentally masturbating over the heads of his students.
by tahirjahi July 04, 2010

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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